100212110001 has 24 divisors (see below), whose sum is σ = 154951836000. Its totient is φ = 62219109312.

The previous prime is 100212109997. The next prime is 100212110027. The reversal of 100212110001 is 100011212001.

It is a happy number.

It is not a de Polignac number, because 100212110001 - 2² = 100212109997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (100212110071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4956316 + ... + 4976493.

It is an arithmetic number, because the mean of its divisors is an integer number (6456326500).

Almost surely, 2^100212110001 is an apocalyptic number.

It is an amenable number.

100212110001 is a deficient number, since it is larger than the sum of its proper divisors (54739725999).

100212110001 is a wasteful number, since it uses less digits than its factorization.

100212110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9932893 (or 9932890 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100212110001 its reverse (100011212001), we get a palindrome (200223322002).

The spelling of 100212110001 in words is "one hundred billion, two hundred twelve million, one hundred ten thousand, one".